ML19249F290
| ML19249F290 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 09/17/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Clayton F ALABAMA POWER CO. |
| References | |
| NUDOCS 7910110223 | |
| Download: ML19249F290 (1) | |
Text
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'o UNITED STATES
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NUCLEAR REGULATORY COMMISSION n
E REGION 11 o
101 MARIETTA ST., N.W., SU.TE 3100 p*
ATLANTA, GEORGSA 3o303 In Reply Refer To:
SEP 171979 RII:JP0 Q0-364 Alabama Power Company Attn:
F. L. Clayton, Jr.
Senior Vice President Post Office Box 2641 Bimingham, Alabama 35291 Gentlemen:
The enclosed Information Notice provides information with regard to a potential unreviewed safety question involving high energy lines and control systems.
Sincerely, fM Ja P. O'Rei y Director
Enclosures:
- 2. List of IE Infomation Notices Issued in the Last Six Months
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.910110
SEP 171979 Alabama Power Company.
cc w/ encl:
A. R. Barton Executive Vice President Post Office Box 2641 Birmingham, Alabama 35291 H. O. Thrash Manager, Nuclear Generation Post Office Box 2641 Birmingham, Alabama 35291 C. Biddinger, Jr.
Manager-Corporate Quality Assurance Post Office Box 2641 Birmingham, Alabama 35291 W. G. Hairston, III Plant Manager Drawer 470 Ashford, Alabama 36312 R. E. Hollands, Jr.
QA Supervisor Post Office Box U Ashford, Alabama 36312
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l2 Accession No: 7908220112 SSINS: 6870 UNITED STATES m-h) d,,N c
O NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT
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WASHINGTON, D.C.
20555 September 14, 1979 IE Information No* ice No. 79-22 QUALIFICATION OF CONTROL SYSTEMS Public Service Electric and Gas Company notified the NRC of a potential unreviewed safety question at their Salem Unit 1 facility. This notification was based on a continuing review by Westinghouse of the environmental qualifications of equipment that they supply for nuclear steam supply systems.
Based on the present status of this effort, Westinghouse has informed their customers that the performance of non-safety grade equipment subjected to an adverse enviroument could impact the protective functions performed by safety grade equipment. These non-safecy grade systems include:
Steam generator power operated relief valve control system Pressurizer power operated relief valve control system Main feedwater control system Automatic rod control system These systems could potentially malfunction due to a high energy line break inside or outside of containment. NRC is also concerned that the adverse environment could also give erroneous information to the plant operators.
Westinghouse states that the consequences of such an event could possibly be more limiting than results presented in Safety Analysis Reports, however, Westinghouse also states that the severity of the results can be limited by operator actions together with operating characterisitics of the safety systems. Further, Westinghouse has recommended to their customers that they review their systems to determine whether any unreviewed safety questions exist.
This Information Notice is provided as an early notification of a possibly significant matter.
It is expected that recipients will review the information for possible applicability to their facilities. No specific action or response is requested at this time.
If NRC evaluations <so indicate, further licensee actions may be requested or required.
If you have questions regarding this matter, please contact the Director of the appropriate NRC Regional Office.
No written response to this Information Notice is required.
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